Improvement in harrows



' Witnesses.. I lInventor.

#m j fm n@ N waited ndert JAY KNIACKERBOCKER, 0F DUNNING, PENNSYLVANIA.

Letters Patent No. 92,320, dated T/aly, 1869.

IMPROVEMENT IN HARROWS.

The Schedule referred to in these Letters Patent making part of the lama..

To all whom 'it 'may conce/rn.-

Be it known that I, J AY KNICKERBOCKER, of Dunning, in the county of Luzerne, and State of Pennsylvania, have invented a new and improved Harrow; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing, forming part of this specification.

rlhe drawing represents a perspective view of my improved harrow.

/This invention relates to a new jointed harrow, which is so arranged, by being made of several pieces, which are hinged together, that it will adjust itself to the nature of the ground, and that it may, to avoid trees, stumps or rocks, be'folded together, and made narrower, without dculty. After the obstruction has been passed, it can at once be readjusted to its former size and form. It may be taken apart, and portions of it used separately, for cultivating corn, potato, or cottonfields.

The halrow is composed of four pieces, A B O'D.

The front pieces, A B, are two right-angled triangles, which are, with their longest cathet-i, a a, placed t together, so that their shortest sides, b b, will be .in line. Their converging longest sides', c,forni the point of the harrow.

The two triangles A B are pivoted together by a rod, d, passing through eyes e, formed on both triangles, as shown.

C D are bars, attached to the rear of the triangles A B, respectivelnto form continuations of the lines c c.

When to be passed through between two obstruc-Y tions. one triangle` may be folded upon the other,

whereby the width of the harrow is halved.

The connections between the bars C D and the triangles are so arranged that a slight up-and-down play is allowed to the bars, to enable theln and the triangles to pass over stones without lifting the whole harrow.

vThe teeth E E are arranged on the bars of the triangles, and on the bars O D, as shown in the drawing. One of the trianglesmay be used separately, to'be drawn overcorn, potato, or cotton-fields.

Having thus described my'invention,

What I claim as new, and desire to secure by Let-f An adj nstable harrow, consisting of the triangles B and bars C D, the triangles being lpivoted together, and one or both of the bars being Ihinged to the triangles, substantially as herein show'n and described.

s JAY KNIGKERBOGKER.

Witnesses:

C. K. SHOEMKER, Pim-.o REISINGER. 

